CVE-2021-25635

Summary

An Improper Certificate Validation vulnerability in LibreOffice allowed an attacker to self sign an ODF document, with a signature untrusted by the target, then modify it to change the signature algorithm to an invalid (or unknown to LibreOffice) algorithm and LibreOffice would incorrectly present such a signature with an unknown algorithm as a valid signature issued by a trusted person

This issue affects LibreOffice: from 7.0 before 7.0.5, from 7.1 before 7.1.1.

Affected Software

VendorProductVersion RangeStatus
The Document FoundationLibreOffice7.0 < 7.0.5affected
The Document FoundationLibreOffice7.1 < 7.1.1affected

Weaknesses

  • CWE-295: CWE-295 Improper Certificate Validation

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: total

References